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3.3 Welding polarity connection way
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3.3.1 MMA
Choosing the connection of DCEN or DCEP is based on the arc stable burning condition. The different
electrodes need different connection way. Please refer to the electrode manual.
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3.3.2 TIG
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When TIG operation, the shielded gas is inputted to welding gun directly, and the method of lifting arc
is adopted.
Stricking arc of TIG operation: when tungsten electrode touches the workpiece, the short-circuit current
is only 10A. After generating arc, current can rise to the setting welding current. If ther tungesten
electrode touches the workpiece when welding, the current will drop to 10A within 2s, which can reduce
the tungsten spoilage farthestly, prolong the using life of the tungsten electrode, and prevent tungsten
clipping.
Содержание INARC 200 IDS
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